613 4 AVENUE is a prewar 1921 building, 3 units in Park Slope, NYC. Owned by EFFELL ASSOCIATES INC. Public records show 24 open violations, 4 311 complaints on file.
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Brooklyn · February 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to November.
Monthly counts over the last 7 years · all data sources
No HPD records on file in the last 7 years.
Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.
View full landlord profileTop 2 by score · of 3 total
ACRIS deeds and regulatory filings
South Park Slope and the Gowanus borderlands offer the brownstone beauty of Park Slope with slightly more edge — the Gowanus Canal is being cleaned up, Old Stone House park hosts community events, and Fifth Avenue's bar and restaurant scene is unpretentious and local.
Illegal Parking — Blocked Bike Lane
Noise - Street/Sidewalk — Loud Talking
Noise - Street/Sidewalk — Loud Talking
Sewer — Sewer Odor (SA2)